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Figure 1 Crystal structure of MnBa2(HPO4)2(H2PO4)2. Upper: viewing down approximately along the direction of [100]. Down: the representation of hydrogen bonds occurring between [PO3(OH)] groups and [PO2(OH)2] groups. ([MnO6] are drawn as pink octahedra; [PO3(OH)] as blue tetrahedra; [PO2(OH)2] as green tetrahedra; Ba as black spheres; Mn as pink spheres; H as small black balls). |